]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - net/mac80211/cfg.c
projects / mirror_ubuntu-bionic-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'stable/for-linus-3.11-rc0-tag-two' of git://git.kernel.org/pub/scm/linux...
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 /*
77 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
78 * changed while the interface is up.
79 * Else we would need to add a lot of cruft
80 * to update everything:
81 * cooked_mntrs, monitor and all fif_* counters
82 * reconfigure hardware
83 */
84 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
85 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
86 return -EBUSY;
87
88 ieee80211_adjust_monitor_flags(sdata, -1);
89 sdata->u.mntr_flags = *flags;
90 ieee80211_adjust_monitor_flags(sdata, 1);
91
92 ieee80211_configure_filter(local);
93 } else {
94 /*
95 * Because the interface is down, ieee80211_do_stop
96 * and ieee80211_do_open take care of "everything"
97 * mentioned in the comment above.
98 */
99 sdata->u.mntr_flags = *flags;
100 }
101 }
102
103 return 0;
104 }
105
106 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
108 {
109 return ieee80211_do_open(wdev, true);
110 }
111
112 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114 {
115 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
116 }
117
118 static int ieee80211_set_noack_map(struct wiphy *wiphy,
119 struct net_device *dev,
120 u16 noack_map)
121 {
122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
123
124 sdata->noack_map = noack_map;
125 return 0;
126 }
127
128 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
129 u8 key_idx, bool pairwise, const u8 *mac_addr,
130 struct key_params *params)
131 {
132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
133 struct sta_info *sta = NULL;
134 struct ieee80211_key *key;
135 int err;
136
137 if (!ieee80211_sdata_running(sdata))
138 return -ENETDOWN;
139
140 /* reject WEP and TKIP keys if WEP failed to initialize */
141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
143 case WLAN_CIPHER_SUITE_TKIP:
144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
146 return -EINVAL;
147 break;
148 default:
149 break;
150 }
151
152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
154 if (IS_ERR(key))
155 return PTR_ERR(key);
156
157 if (pairwise)
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
159
160 mutex_lock(&sdata->local->sta_mtx);
161
162 if (mac_addr) {
163 if (ieee80211_vif_is_mesh(&sdata->vif))
164 sta = sta_info_get(sdata, mac_addr);
165 else
166 sta = sta_info_get_bss(sdata, mac_addr);
167 /*
168 * The ASSOC test makes sure the driver is ready to
169 * receive the key. When wpa_supplicant has roamed
170 * using FT, it attempts to set the key before
171 * association has completed, this rejects that attempt
172 * so it will set the key again after assocation.
173 *
174 * TODO: accept the key if we have a station entry and
175 * add it to the device after the station.
176 */
177 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
178 ieee80211_key_free_unused(key);
179 err = -ENOENT;
180 goto out_unlock;
181 }
182 }
183
184 switch (sdata->vif.type) {
185 case NL80211_IFTYPE_STATION:
186 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
187 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
188 break;
189 case NL80211_IFTYPE_AP:
190 case NL80211_IFTYPE_AP_VLAN:
191 /* Keys without a station are used for TX only */
192 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
193 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
194 break;
195 case NL80211_IFTYPE_ADHOC:
196 /* no MFP (yet) */
197 break;
198 case NL80211_IFTYPE_MESH_POINT:
199 #ifdef CONFIG_MAC80211_MESH
200 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
201 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
202 break;
203 #endif
204 case NL80211_IFTYPE_WDS:
205 case NL80211_IFTYPE_MONITOR:
206 case NL80211_IFTYPE_P2P_DEVICE:
207 case NL80211_IFTYPE_UNSPECIFIED:
208 case NUM_NL80211_IFTYPES:
209 case NL80211_IFTYPE_P2P_CLIENT:
210 case NL80211_IFTYPE_P2P_GO:
211 /* shouldn't happen */
212 WARN_ON_ONCE(1);
213 break;
214 }
215
216 err = ieee80211_key_link(key, sdata, sta);
217
218 out_unlock:
219 mutex_unlock(&sdata->local->sta_mtx);
220
221 return err;
222 }
223
224 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
225 u8 key_idx, bool pairwise, const u8 *mac_addr)
226 {
227 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
228 struct ieee80211_local *local = sdata->local;
229 struct sta_info *sta;
230 struct ieee80211_key *key = NULL;
231 int ret;
232
233 mutex_lock(&local->sta_mtx);
234 mutex_lock(&local->key_mtx);
235
236 if (mac_addr) {
237 ret = -ENOENT;
238
239 sta = sta_info_get_bss(sdata, mac_addr);
240 if (!sta)
241 goto out_unlock;
242
243 if (pairwise)
244 key = key_mtx_dereference(local, sta->ptk);
245 else
246 key = key_mtx_dereference(local, sta->gtk[key_idx]);
247 } else
248 key = key_mtx_dereference(local, sdata->keys[key_idx]);
249
250 if (!key) {
251 ret = -ENOENT;
252 goto out_unlock;
253 }
254
255 ieee80211_key_free(key, true);
256
257 ret = 0;
258 out_unlock:
259 mutex_unlock(&local->key_mtx);
260 mutex_unlock(&local->sta_mtx);
261
262 return ret;
263 }
264
265 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
266 u8 key_idx, bool pairwise, const u8 *mac_addr,
267 void *cookie,
268 void (*callback)(void *cookie,
269 struct key_params *params))
270 {
271 struct ieee80211_sub_if_data *sdata;
272 struct sta_info *sta = NULL;
273 u8 seq[6] = {0};
274 struct key_params params;
275 struct ieee80211_key *key = NULL;
276 u64 pn64;
277 u32 iv32;
278 u16 iv16;
279 int err = -ENOENT;
280
281 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
282
283 rcu_read_lock();
284
285 if (mac_addr) {
286 sta = sta_info_get_bss(sdata, mac_addr);
287 if (!sta)
288 goto out;
289
290 if (pairwise)
291 key = rcu_dereference(sta->ptk);
292 else if (key_idx < NUM_DEFAULT_KEYS)
293 key = rcu_dereference(sta->gtk[key_idx]);
294 } else
295 key = rcu_dereference(sdata->keys[key_idx]);
296
297 if (!key)
298 goto out;
299
300 memset(&params, 0, sizeof(params));
301
302 params.cipher = key->conf.cipher;
303
304 switch (key->conf.cipher) {
305 case WLAN_CIPHER_SUITE_TKIP:
306 iv32 = key->u.tkip.tx.iv32;
307 iv16 = key->u.tkip.tx.iv16;
308
309 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
310 drv_get_tkip_seq(sdata->local,
311 key->conf.hw_key_idx,
312 &iv32, &iv16);
313
314 seq[0] = iv16 & 0xff;
315 seq[1] = (iv16 >> 8) & 0xff;
316 seq[2] = iv32 & 0xff;
317 seq[3] = (iv32 >> 8) & 0xff;
318 seq[4] = (iv32 >> 16) & 0xff;
319 seq[5] = (iv32 >> 24) & 0xff;
320 params.seq = seq;
321 params.seq_len = 6;
322 break;
323 case WLAN_CIPHER_SUITE_CCMP:
324 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
325 seq[0] = pn64;
326 seq[1] = pn64 >> 8;
327 seq[2] = pn64 >> 16;
328 seq[3] = pn64 >> 24;
329 seq[4] = pn64 >> 32;
330 seq[5] = pn64 >> 40;
331 params.seq = seq;
332 params.seq_len = 6;
333 break;
334 case WLAN_CIPHER_SUITE_AES_CMAC:
335 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
336 seq[0] = pn64;
337 seq[1] = pn64 >> 8;
338 seq[2] = pn64 >> 16;
339 seq[3] = pn64 >> 24;
340 seq[4] = pn64 >> 32;
341 seq[5] = pn64 >> 40;
342 params.seq = seq;
343 params.seq_len = 6;
344 break;
345 }
346
347 params.key = key->conf.key;
348 params.key_len = key->conf.keylen;
349
350 callback(cookie, &params);
351 err = 0;
352
353 out:
354 rcu_read_unlock();
355 return err;
356 }
357
358 static int ieee80211_config_default_key(struct wiphy *wiphy,
359 struct net_device *dev,
360 u8 key_idx, bool uni,
361 bool multi)
362 {
363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
364
365 ieee80211_set_default_key(sdata, key_idx, uni, multi);
366
367 return 0;
368 }
369
370 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
371 struct net_device *dev,
372 u8 key_idx)
373 {
374 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
375
376 ieee80211_set_default_mgmt_key(sdata, key_idx);
377
378 return 0;
379 }
380
381 void sta_set_rate_info_tx(struct sta_info *sta,
382 const struct ieee80211_tx_rate *rate,
383 struct rate_info *rinfo)
384 {
385 rinfo->flags = 0;
386 if (rate->flags & IEEE80211_TX_RC_MCS) {
387 rinfo->flags |= RATE_INFO_FLAGS_MCS;
388 rinfo->mcs = rate->idx;
389 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
390 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
391 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
392 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
393 } else {
394 struct ieee80211_supported_band *sband;
395 sband = sta->local->hw.wiphy->bands[
396 ieee80211_get_sdata_band(sta->sdata)];
397 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
398 }
399 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
400 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
401 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
402 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
403 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
404 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
405 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
406 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
407 }
408
409 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
410 {
411 rinfo->flags = 0;
412
413 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
414 rinfo->flags |= RATE_INFO_FLAGS_MCS;
415 rinfo->mcs = sta->last_rx_rate_idx;
416 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
417 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
418 rinfo->nss = sta->last_rx_rate_vht_nss;
419 rinfo->mcs = sta->last_rx_rate_idx;
420 } else {
421 struct ieee80211_supported_band *sband;
422
423 sband = sta->local->hw.wiphy->bands[
424 ieee80211_get_sdata_band(sta->sdata)];
425 rinfo->legacy =
426 sband->bitrates[sta->last_rx_rate_idx].bitrate;
427 }
428
429 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
430 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
431 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
432 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
433 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
434 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
435 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
436 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
437 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
438 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
439 }
440
441 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
442 {
443 struct ieee80211_sub_if_data *sdata = sta->sdata;
444 struct ieee80211_local *local = sdata->local;
445 struct timespec uptime;
446 u64 packets = 0;
447 int ac;
448
449 sinfo->generation = sdata->local->sta_generation;
450
451 sinfo->filled = STATION_INFO_INACTIVE_TIME |
452 STATION_INFO_RX_BYTES64 |
453 STATION_INFO_TX_BYTES64 |
454 STATION_INFO_RX_PACKETS |
455 STATION_INFO_TX_PACKETS |
456 STATION_INFO_TX_RETRIES |
457 STATION_INFO_TX_FAILED |
458 STATION_INFO_TX_BITRATE |
459 STATION_INFO_RX_BITRATE |
460 STATION_INFO_RX_DROP_MISC |
461 STATION_INFO_BSS_PARAM |
462 STATION_INFO_CONNECTED_TIME |
463 STATION_INFO_STA_FLAGS |
464 STATION_INFO_BEACON_LOSS_COUNT;
465
466 do_posix_clock_monotonic_gettime(&uptime);
467 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
468
469 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
470 sinfo->tx_bytes = 0;
471 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
472 sinfo->tx_bytes += sta->tx_bytes[ac];
473 packets += sta->tx_packets[ac];
474 }
475 sinfo->tx_packets = packets;
476 sinfo->rx_bytes = sta->rx_bytes;
477 sinfo->rx_packets = sta->rx_packets;
478 sinfo->tx_retries = sta->tx_retry_count;
479 sinfo->tx_failed = sta->tx_retry_failed;
480 sinfo->rx_dropped_misc = sta->rx_dropped;
481 sinfo->beacon_loss_count = sta->beacon_loss_count;
482
483 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
484 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
485 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
486 if (!local->ops->get_rssi ||
487 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
488 sinfo->signal = (s8)sta->last_signal;
489 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
490 }
491
492 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
493 sta_set_rate_info_rx(sta, &sinfo->rxrate);
494
495 if (ieee80211_vif_is_mesh(&sdata->vif)) {
496 #ifdef CONFIG_MAC80211_MESH
497 sinfo->filled |= STATION_INFO_LLID |
498 STATION_INFO_PLID |
499 STATION_INFO_PLINK_STATE |
500 STATION_INFO_LOCAL_PM |
501 STATION_INFO_PEER_PM |
502 STATION_INFO_NONPEER_PM;
503
504 sinfo->llid = le16_to_cpu(sta->llid);
505 sinfo->plid = le16_to_cpu(sta->plid);
506 sinfo->plink_state = sta->plink_state;
507 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
508 sinfo->filled |= STATION_INFO_T_OFFSET;
509 sinfo->t_offset = sta->t_offset;
510 }
511 sinfo->local_pm = sta->local_pm;
512 sinfo->peer_pm = sta->peer_pm;
513 sinfo->nonpeer_pm = sta->nonpeer_pm;
514 #endif
515 }
516
517 sinfo->bss_param.flags = 0;
518 if (sdata->vif.bss_conf.use_cts_prot)
519 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
520 if (sdata->vif.bss_conf.use_short_preamble)
521 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
522 if (sdata->vif.bss_conf.use_short_slot)
523 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
524 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
525 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
526
527 sinfo->sta_flags.set = 0;
528 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
529 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
530 BIT(NL80211_STA_FLAG_WME) |
531 BIT(NL80211_STA_FLAG_MFP) |
532 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
533 BIT(NL80211_STA_FLAG_ASSOCIATED) |
534 BIT(NL80211_STA_FLAG_TDLS_PEER);
535 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
536 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
537 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
538 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
539 if (test_sta_flag(sta, WLAN_STA_WME))
540 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
541 if (test_sta_flag(sta, WLAN_STA_MFP))
542 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
543 if (test_sta_flag(sta, WLAN_STA_AUTH))
544 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
545 if (test_sta_flag(sta, WLAN_STA_ASSOC))
546 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
547 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
548 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
549 }
550
551 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
552 "rx_packets", "rx_bytes", "wep_weak_iv_count",
553 "rx_duplicates", "rx_fragments", "rx_dropped",
554 "tx_packets", "tx_bytes", "tx_fragments",
555 "tx_filtered", "tx_retry_failed", "tx_retries",
556 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
557 "channel", "noise", "ch_time", "ch_time_busy",
558 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
559 };
560 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
561
562 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
563 struct net_device *dev,
564 int sset)
565 {
566 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
567 int rv = 0;
568
569 if (sset == ETH_SS_STATS)
570 rv += STA_STATS_LEN;
571
572 rv += drv_get_et_sset_count(sdata, sset);
573
574 if (rv == 0)
575 return -EOPNOTSUPP;
576 return rv;
577 }
578
579 static void ieee80211_get_et_stats(struct wiphy *wiphy,
580 struct net_device *dev,
581 struct ethtool_stats *stats,
582 u64 *data)
583 {
584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
585 struct ieee80211_chanctx_conf *chanctx_conf;
586 struct ieee80211_channel *channel;
587 struct sta_info *sta;
588 struct ieee80211_local *local = sdata->local;
589 struct station_info sinfo;
590 struct survey_info survey;
591 int i, q;
592 #define STA_STATS_SURVEY_LEN 7
593
594 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
595
596 #define ADD_STA_STATS(sta) \
597 do { \
598 data[i++] += sta->rx_packets; \
599 data[i++] += sta->rx_bytes; \
600 data[i++] += sta->wep_weak_iv_count; \
601 data[i++] += sta->num_duplicates; \
602 data[i++] += sta->rx_fragments; \
603 data[i++] += sta->rx_dropped; \
604 \
605 data[i++] += sinfo.tx_packets; \
606 data[i++] += sinfo.tx_bytes; \
607 data[i++] += sta->tx_fragments; \
608 data[i++] += sta->tx_filtered_count; \
609 data[i++] += sta->tx_retry_failed; \
610 data[i++] += sta->tx_retry_count; \
611 data[i++] += sta->beacon_loss_count; \
612 } while (0)
613
614 /* For Managed stations, find the single station based on BSSID
615 * and use that. For interface types, iterate through all available
616 * stations and add stats for any station that is assigned to this
617 * network device.
618 */
619
620 mutex_lock(&local->sta_mtx);
621
622 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
623 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
624
625 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
626 goto do_survey;
627
628 sinfo.filled = 0;
629 sta_set_sinfo(sta, &sinfo);
630
631 i = 0;
632 ADD_STA_STATS(sta);
633
634 data[i++] = sta->sta_state;
635
636
637 if (sinfo.filled & STATION_INFO_TX_BITRATE)
638 data[i] = 100000 *
639 cfg80211_calculate_bitrate(&sinfo.txrate);
640 i++;
641 if (sinfo.filled & STATION_INFO_RX_BITRATE)
642 data[i] = 100000 *
643 cfg80211_calculate_bitrate(&sinfo.rxrate);
644 i++;
645
646 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
647 data[i] = (u8)sinfo.signal_avg;
648 i++;
649 } else {
650 list_for_each_entry(sta, &local->sta_list, list) {
651 /* Make sure this station belongs to the proper dev */
652 if (sta->sdata->dev != dev)
653 continue;
654
655 i = 0;
656 ADD_STA_STATS(sta);
657 }
658 }
659
660 do_survey:
661 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
662 /* Get survey stats for current channel */
663 survey.filled = 0;
664
665 rcu_read_lock();
666 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
667 if (chanctx_conf)
668 channel = chanctx_conf->def.chan;
669 else
670 channel = NULL;
671 rcu_read_unlock();
672
673 if (channel) {
674 q = 0;
675 do {
676 survey.filled = 0;
677 if (drv_get_survey(local, q, &survey) != 0) {
678 survey.filled = 0;
679 break;
680 }
681 q++;
682 } while (channel != survey.channel);
683 }
684
685 if (survey.filled)
686 data[i++] = survey.channel->center_freq;
687 else
688 data[i++] = 0;
689 if (survey.filled & SURVEY_INFO_NOISE_DBM)
690 data[i++] = (u8)survey.noise;
691 else
692 data[i++] = -1LL;
693 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
694 data[i++] = survey.channel_time;
695 else
696 data[i++] = -1LL;
697 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
698 data[i++] = survey.channel_time_busy;
699 else
700 data[i++] = -1LL;
701 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
702 data[i++] = survey.channel_time_ext_busy;
703 else
704 data[i++] = -1LL;
705 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
706 data[i++] = survey.channel_time_rx;
707 else
708 data[i++] = -1LL;
709 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
710 data[i++] = survey.channel_time_tx;
711 else
712 data[i++] = -1LL;
713
714 mutex_unlock(&local->sta_mtx);
715
716 if (WARN_ON(i != STA_STATS_LEN))
717 return;
718
719 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
720 }
721
722 static void ieee80211_get_et_strings(struct wiphy *wiphy,
723 struct net_device *dev,
724 u32 sset, u8 *data)
725 {
726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
727 int sz_sta_stats = 0;
728
729 if (sset == ETH_SS_STATS) {
730 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
731 memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
732 }
733 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
734 }
735
736 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
737 int idx, u8 *mac, struct station_info *sinfo)
738 {
739 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
740 struct ieee80211_local *local = sdata->local;
741 struct sta_info *sta;
742 int ret = -ENOENT;
743
744 mutex_lock(&local->sta_mtx);
745
746 sta = sta_info_get_by_idx(sdata, idx);
747 if (sta) {
748 ret = 0;
749 memcpy(mac, sta->sta.addr, ETH_ALEN);
750 sta_set_sinfo(sta, sinfo);
751 }
752
753 mutex_unlock(&local->sta_mtx);
754
755 return ret;
756 }
757
758 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
759 int idx, struct survey_info *survey)
760 {
761 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
762
763 return drv_get_survey(local, idx, survey);
764 }
765
766 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
767 u8 *mac, struct station_info *sinfo)
768 {
769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
770 struct ieee80211_local *local = sdata->local;
771 struct sta_info *sta;
772 int ret = -ENOENT;
773
774 mutex_lock(&local->sta_mtx);
775
776 sta = sta_info_get_bss(sdata, mac);
777 if (sta) {
778 ret = 0;
779 sta_set_sinfo(sta, sinfo);
780 }
781
782 mutex_unlock(&local->sta_mtx);
783
784 return ret;
785 }
786
787 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
788 struct cfg80211_chan_def *chandef)
789 {
790 struct ieee80211_local *local = wiphy_priv(wiphy);
791 struct ieee80211_sub_if_data *sdata;
792 int ret = 0;
793
794 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
795 return 0;
796
797 mutex_lock(&local->iflist_mtx);
798 if (local->use_chanctx) {
799 sdata = rcu_dereference_protected(
800 local->monitor_sdata,
801 lockdep_is_held(&local->iflist_mtx));
802 if (sdata) {
803 ieee80211_vif_release_channel(sdata);
804 ret = ieee80211_vif_use_channel(sdata, chandef,
805 IEEE80211_CHANCTX_EXCLUSIVE);
806 }
807 } else if (local->open_count == local->monitors) {
808 local->_oper_chandef = *chandef;
809 ieee80211_hw_config(local, 0);
810 }
811
812 if (ret == 0)
813 local->monitor_chandef = *chandef;
814 mutex_unlock(&local->iflist_mtx);
815
816 return ret;
817 }
818
819 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
820 const u8 *resp, size_t resp_len)
821 {
822 struct probe_resp *new, *old;
823
824 if (!resp || !resp_len)
825 return 1;
826
827 old = rtnl_dereference(sdata->u.ap.probe_resp);
828
829 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
830 if (!new)
831 return -ENOMEM;
832
833 new->len = resp_len;
834 memcpy(new->data, resp, resp_len);
835
836 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
837 if (old)
838 kfree_rcu(old, rcu_head);
839
840 return 0;
841 }
842
843 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
844 struct cfg80211_beacon_data *params)
845 {
846 struct beacon_data *new, *old;
847 int new_head_len, new_tail_len;
848 int size, err;
849 u32 changed = BSS_CHANGED_BEACON;
850
851 old = rtnl_dereference(sdata->u.ap.beacon);
852
853 /* Need to have a beacon head if we don't have one yet */
854 if (!params->head && !old)
855 return -EINVAL;
856
857 /* new or old head? */
858 if (params->head)
859 new_head_len = params->head_len;
860 else
861 new_head_len = old->head_len;
862
863 /* new or old tail? */
864 if (params->tail || !old)
865 /* params->tail_len will be zero for !params->tail */
866 new_tail_len = params->tail_len;
867 else
868 new_tail_len = old->tail_len;
869
870 size = sizeof(*new) + new_head_len + new_tail_len;
871
872 new = kzalloc(size, GFP_KERNEL);
873 if (!new)
874 return -ENOMEM;
875
876 /* start filling the new info now */
877
878 /*
879 * pointers go into the block we allocated,
880 * memory is | beacon_data | head | tail |
881 */
882 new->head = ((u8 *) new) + sizeof(*new);
883 new->tail = new->head + new_head_len;
884 new->head_len = new_head_len;
885 new->tail_len = new_tail_len;
886
887 /* copy in head */
888 if (params->head)
889 memcpy(new->head, params->head, new_head_len);
890 else
891 memcpy(new->head, old->head, new_head_len);
892
893 /* copy in optional tail */
894 if (params->tail)
895 memcpy(new->tail, params->tail, new_tail_len);
896 else
897 if (old)
898 memcpy(new->tail, old->tail, new_tail_len);
899
900 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
901 params->probe_resp_len);
902 if (err < 0)
903 return err;
904 if (err == 0)
905 changed |= BSS_CHANGED_AP_PROBE_RESP;
906
907 rcu_assign_pointer(sdata->u.ap.beacon, new);
908
909 if (old)
910 kfree_rcu(old, rcu_head);
911
912 return changed;
913 }
914
915 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
916 struct cfg80211_ap_settings *params)
917 {
918 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
919 struct beacon_data *old;
920 struct ieee80211_sub_if_data *vlan;
921 u32 changed = BSS_CHANGED_BEACON_INT |
922 BSS_CHANGED_BEACON_ENABLED |
923 BSS_CHANGED_BEACON |
924 BSS_CHANGED_SSID |
925 BSS_CHANGED_P2P_PS;
926 int err;
927
928 old = rtnl_dereference(sdata->u.ap.beacon);
929 if (old)
930 return -EALREADY;
931
932 /* TODO: make hostapd tell us what it wants */
933 sdata->smps_mode = IEEE80211_SMPS_OFF;
934 sdata->needed_rx_chains = sdata->local->rx_chains;
935 sdata->radar_required = params->radar_required;
936
937 err = ieee80211_vif_use_channel(sdata, &params->chandef,
938 IEEE80211_CHANCTX_SHARED);
939 if (err)
940 return err;
941 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
942
943 /*
944 * Apply control port protocol, this allows us to
945 * not encrypt dynamic WEP control frames.
946 */
947 sdata->control_port_protocol = params->crypto.control_port_ethertype;
948 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
949 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
950 vlan->control_port_protocol =
951 params->crypto.control_port_ethertype;
952 vlan->control_port_no_encrypt =
953 params->crypto.control_port_no_encrypt;
954 }
955
956 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
957 sdata->vif.bss_conf.dtim_period = params->dtim_period;
958 sdata->vif.bss_conf.enable_beacon = true;
959
960 sdata->vif.bss_conf.ssid_len = params->ssid_len;
961 if (params->ssid_len)
962 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
963 params->ssid_len);
964 sdata->vif.bss_conf.hidden_ssid =
965 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
966
967 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
968 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
969 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
970 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
971 if (params->p2p_opp_ps)
972 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
973 IEEE80211_P2P_OPPPS_ENABLE_BIT;
974
975 err = ieee80211_assign_beacon(sdata, &params->beacon);
976 if (err < 0)
977 return err;
978 changed |= err;
979
980 err = drv_start_ap(sdata->local, sdata);
981 if (err) {
982 old = rtnl_dereference(sdata->u.ap.beacon);
983 if (old)
984 kfree_rcu(old, rcu_head);
985 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
986 return err;
987 }
988
989 ieee80211_bss_info_change_notify(sdata, changed);
990
991 netif_carrier_on(dev);
992 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
993 netif_carrier_on(vlan->dev);
994
995 return 0;
996 }
997
998 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
999 struct cfg80211_beacon_data *params)
1000 {
1001 struct ieee80211_sub_if_data *sdata;
1002 struct beacon_data *old;
1003 int err;
1004
1005 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1006
1007 old = rtnl_dereference(sdata->u.ap.beacon);
1008 if (!old)
1009 return -ENOENT;
1010
1011 err = ieee80211_assign_beacon(sdata, params);
1012 if (err < 0)
1013 return err;
1014 ieee80211_bss_info_change_notify(sdata, err);
1015 return 0;
1016 }
1017
1018 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1019 {
1020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1021 struct ieee80211_sub_if_data *vlan;
1022 struct ieee80211_local *local = sdata->local;
1023 struct beacon_data *old_beacon;
1024 struct probe_resp *old_probe_resp;
1025
1026 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1027 if (!old_beacon)
1028 return -ENOENT;
1029 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
1030
1031 /* turn off carrier for this interface and dependent VLANs */
1032 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1033 netif_carrier_off(vlan->dev);
1034 netif_carrier_off(dev);
1035
1036 /* remove beacon and probe response */
1037 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1038 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1039 kfree_rcu(old_beacon, rcu_head);
1040 if (old_probe_resp)
1041 kfree_rcu(old_probe_resp, rcu_head);
1042
1043 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1044 sta_info_flush_defer(vlan);
1045 sta_info_flush_defer(sdata);
1046 synchronize_net();
1047 rcu_barrier();
1048 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1049 sta_info_flush_cleanup(vlan);
1050 ieee80211_free_keys(vlan);
1051 }
1052 sta_info_flush_cleanup(sdata);
1053 ieee80211_free_keys(sdata);
1054
1055 sdata->vif.bss_conf.enable_beacon = false;
1056 sdata->vif.bss_conf.ssid_len = 0;
1057 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1058 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1059
1060 if (sdata->wdev.cac_started) {
1061 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1062 cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
1063 GFP_KERNEL);
1064 }
1065
1066 drv_stop_ap(sdata->local, sdata);
1067
1068 /* free all potentially still buffered bcast frames */
1069 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1070 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1071
1072 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1073 ieee80211_vif_release_channel(sdata);
1074
1075 return 0;
1076 }
1077
1078 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1079 struct iapp_layer2_update {
1080 u8 da[ETH_ALEN]; /* broadcast */
1081 u8 sa[ETH_ALEN]; /* STA addr */
1082 __be16 len; /* 6 */
1083 u8 dsap; /* 0 */
1084 u8 ssap; /* 0 */
1085 u8 control;
1086 u8 xid_info[3];
1087 } __packed;
1088
1089 static void ieee80211_send_layer2_update(struct sta_info *sta)
1090 {
1091 struct iapp_layer2_update *msg;
1092 struct sk_buff *skb;
1093
1094 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1095 * bridge devices */
1096
1097 skb = dev_alloc_skb(sizeof(*msg));
1098 if (!skb)
1099 return;
1100 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1101
1102 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1103 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1104
1105 eth_broadcast_addr(msg->da);
1106 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1107 msg->len = htons(6);
1108 msg->dsap = 0;
1109 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1110 msg->control = 0xaf; /* XID response lsb.1111F101.
1111 * F=0 (no poll command; unsolicited frame) */
1112 msg->xid_info[0] = 0x81; /* XID format identifier */
1113 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1114 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1115
1116 skb->dev = sta->sdata->dev;
1117 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1118 memset(skb->cb, 0, sizeof(skb->cb));
1119 netif_rx_ni(skb);
1120 }
1121
1122 static int sta_apply_auth_flags(struct ieee80211_local *local,
1123 struct sta_info *sta,
1124 u32 mask, u32 set)
1125 {
1126 int ret;
1127
1128 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1129 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1130 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1131 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1132 if (ret)
1133 return ret;
1134 }
1135
1136 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1137 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1138 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1139 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1140 if (ret)
1141 return ret;
1142 }
1143
1144 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1145 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1146 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1147 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1148 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1149 else
1150 ret = 0;
1151 if (ret)
1152 return ret;
1153 }
1154
1155 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1156 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1157 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1158 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1159 if (ret)
1160 return ret;
1161 }
1162
1163 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1164 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1165 test_sta_flag(sta, WLAN_STA_AUTH)) {
1166 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1167 if (ret)
1168 return ret;
1169 }
1170
1171 return 0;
1172 }
1173
1174 static int sta_apply_parameters(struct ieee80211_local *local,
1175 struct sta_info *sta,
1176 struct station_parameters *params)
1177 {
1178 int ret = 0;
1179 u32 rates;
1180 int i, j;
1181 struct ieee80211_supported_band *sband;
1182 struct ieee80211_sub_if_data *sdata = sta->sdata;
1183 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1184 u32 mask, set;
1185
1186 sband = local->hw.wiphy->bands[band];
1187
1188 mask = params->sta_flags_mask;
1189 set = params->sta_flags_set;
1190
1191 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1192 /*
1193 * In mesh mode, ASSOCIATED isn't part of the nl80211
1194 * API but must follow AUTHENTICATED for driver state.
1195 */
1196 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1197 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1198 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1199 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1200 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1201 /*
1202 * TDLS -- everything follows authorized, but
1203 * only becoming authorized is possible, not
1204 * going back
1205 */
1206 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1207 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1208 BIT(NL80211_STA_FLAG_ASSOCIATED);
1209 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1210 BIT(NL80211_STA_FLAG_ASSOCIATED);
1211 }
1212 }
1213
1214 ret = sta_apply_auth_flags(local, sta, mask, set);
1215 if (ret)
1216 return ret;
1217
1218 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1219 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1220 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1221 else
1222 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1223 }
1224
1225 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1226 if (set & BIT(NL80211_STA_FLAG_WME)) {
1227 set_sta_flag(sta, WLAN_STA_WME);
1228 sta->sta.wme = true;
1229 } else {
1230 clear_sta_flag(sta, WLAN_STA_WME);
1231 sta->sta.wme = false;
1232 }
1233 }
1234
1235 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1236 if (set & BIT(NL80211_STA_FLAG_MFP))
1237 set_sta_flag(sta, WLAN_STA_MFP);
1238 else
1239 clear_sta_flag(sta, WLAN_STA_MFP);
1240 }
1241
1242 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1243 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1244 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1245 else
1246 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1247 }
1248
1249 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1250 sta->sta.uapsd_queues = params->uapsd_queues;
1251 sta->sta.max_sp = params->max_sp;
1252 }
1253
1254 /*
1255 * cfg80211 validates this (1-2007) and allows setting the AID
1256 * only when creating a new station entry
1257 */
1258 if (params->aid)
1259 sta->sta.aid = params->aid;
1260
1261 /*
1262 * Some of the following updates would be racy if called on an
1263 * existing station, via ieee80211_change_station(). However,
1264 * all such changes are rejected by cfg80211 except for updates
1265 * changing the supported rates on an existing but not yet used
1266 * TDLS peer.
1267 */
1268
1269 if (params->listen_interval >= 0)
1270 sta->listen_interval = params->listen_interval;
1271
1272 if (params->supported_rates) {
1273 rates = 0;
1274
1275 for (i = 0; i < params->supported_rates_len; i++) {
1276 int rate = (params->supported_rates[i] & 0x7f) * 5;
1277 for (j = 0; j < sband->n_bitrates; j++) {
1278 if (sband->bitrates[j].bitrate == rate)
1279 rates |= BIT(j);
1280 }
1281 }
1282 sta->sta.supp_rates[band] = rates;
1283 }
1284
1285 if (params->ht_capa)
1286 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1287 params->ht_capa, sta);
1288
1289 if (params->vht_capa)
1290 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1291 params->vht_capa, sta);
1292
1293 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1294 #ifdef CONFIG_MAC80211_MESH
1295 u32 changed = 0;
1296
1297 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1298 switch (params->plink_state) {
1299 case NL80211_PLINK_ESTAB:
1300 if (sta->plink_state != NL80211_PLINK_ESTAB)
1301 changed = mesh_plink_inc_estab_count(
1302 sdata);
1303 sta->plink_state = params->plink_state;
1304
1305 ieee80211_mps_sta_status_update(sta);
1306 changed |= ieee80211_mps_set_sta_local_pm(sta,
1307 sdata->u.mesh.mshcfg.power_mode);
1308 break;
1309 case NL80211_PLINK_LISTEN:
1310 case NL80211_PLINK_BLOCKED:
1311 case NL80211_PLINK_OPN_SNT:
1312 case NL80211_PLINK_OPN_RCVD:
1313 case NL80211_PLINK_CNF_RCVD:
1314 case NL80211_PLINK_HOLDING:
1315 if (sta->plink_state == NL80211_PLINK_ESTAB)
1316 changed = mesh_plink_dec_estab_count(
1317 sdata);
1318 sta->plink_state = params->plink_state;
1319
1320 ieee80211_mps_sta_status_update(sta);
1321 changed |=
1322 ieee80211_mps_local_status_update(sdata);
1323 break;
1324 default:
1325 /* nothing */
1326 break;
1327 }
1328 }
1329
1330 switch (params->plink_action) {
1331 case NL80211_PLINK_ACTION_NO_ACTION:
1332 /* nothing */
1333 break;
1334 case NL80211_PLINK_ACTION_OPEN:
1335 changed |= mesh_plink_open(sta);
1336 break;
1337 case NL80211_PLINK_ACTION_BLOCK:
1338 changed |= mesh_plink_block(sta);
1339 break;
1340 }
1341
1342 if (params->local_pm)
1343 changed |=
1344 ieee80211_mps_set_sta_local_pm(sta,
1345 params->local_pm);
1346 ieee80211_bss_info_change_notify(sdata, changed);
1347 #endif
1348 }
1349
1350 return 0;
1351 }
1352
1353 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1354 u8 *mac, struct station_parameters *params)
1355 {
1356 struct ieee80211_local *local = wiphy_priv(wiphy);
1357 struct sta_info *sta;
1358 struct ieee80211_sub_if_data *sdata;
1359 int err;
1360 int layer2_update;
1361
1362 if (params->vlan) {
1363 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1364
1365 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1366 sdata->vif.type != NL80211_IFTYPE_AP)
1367 return -EINVAL;
1368 } else
1369 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1370
1371 if (ether_addr_equal(mac, sdata->vif.addr))
1372 return -EINVAL;
1373
1374 if (is_multicast_ether_addr(mac))
1375 return -EINVAL;
1376
1377 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1378 if (!sta)
1379 return -ENOMEM;
1380
1381 /*
1382 * defaults -- if userspace wants something else we'll
1383 * change it accordingly in sta_apply_parameters()
1384 */
1385 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1386 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1387 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1388 }
1389
1390 err = sta_apply_parameters(local, sta, params);
1391 if (err) {
1392 sta_info_free(local, sta);
1393 return err;
1394 }
1395
1396 /*
1397 * for TDLS, rate control should be initialized only when
1398 * rates are known and station is marked authorized
1399 */
1400 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1401 rate_control_rate_init(sta);
1402
1403 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1404 sdata->vif.type == NL80211_IFTYPE_AP;
1405
1406 err = sta_info_insert_rcu(sta);
1407 if (err) {
1408 rcu_read_unlock();
1409 return err;
1410 }
1411
1412 if (layer2_update)
1413 ieee80211_send_layer2_update(sta);
1414
1415 rcu_read_unlock();
1416
1417 return 0;
1418 }
1419
1420 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1421 u8 *mac)
1422 {
1423 struct ieee80211_sub_if_data *sdata;
1424
1425 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1426
1427 if (mac)
1428 return sta_info_destroy_addr_bss(sdata, mac);
1429
1430 sta_info_flush(sdata);
1431 return 0;
1432 }
1433
1434 static int ieee80211_change_station(struct wiphy *wiphy,
1435 struct net_device *dev, u8 *mac,
1436 struct station_parameters *params)
1437 {
1438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1439 struct ieee80211_local *local = wiphy_priv(wiphy);
1440 struct sta_info *sta;
1441 struct ieee80211_sub_if_data *vlansdata;
1442 enum cfg80211_station_type statype;
1443 int err;
1444
1445 mutex_lock(&local->sta_mtx);
1446
1447 sta = sta_info_get_bss(sdata, mac);
1448 if (!sta) {
1449 err = -ENOENT;
1450 goto out_err;
1451 }
1452
1453 switch (sdata->vif.type) {
1454 case NL80211_IFTYPE_MESH_POINT:
1455 if (sdata->u.mesh.user_mpm)
1456 statype = CFG80211_STA_MESH_PEER_USER;
1457 else
1458 statype = CFG80211_STA_MESH_PEER_KERNEL;
1459 break;
1460 case NL80211_IFTYPE_ADHOC:
1461 statype = CFG80211_STA_IBSS;
1462 break;
1463 case NL80211_IFTYPE_STATION:
1464 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1465 statype = CFG80211_STA_AP_STA;
1466 break;
1467 }
1468 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1469 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1470 else
1471 statype = CFG80211_STA_TDLS_PEER_SETUP;
1472 break;
1473 case NL80211_IFTYPE_AP:
1474 case NL80211_IFTYPE_AP_VLAN:
1475 statype = CFG80211_STA_AP_CLIENT;
1476 break;
1477 default:
1478 err = -EOPNOTSUPP;
1479 goto out_err;
1480 }
1481
1482 err = cfg80211_check_station_change(wiphy, params, statype);
1483 if (err)
1484 goto out_err;
1485
1486 if (params->vlan && params->vlan != sta->sdata->dev) {
1487 bool prev_4addr = false;
1488 bool new_4addr = false;
1489
1490 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1491
1492 if (params->vlan->ieee80211_ptr->use_4addr) {
1493 if (vlansdata->u.vlan.sta) {
1494 err = -EBUSY;
1495 goto out_err;
1496 }
1497
1498 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1499 new_4addr = true;
1500 }
1501
1502 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1503 sta->sdata->u.vlan.sta) {
1504 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1505 prev_4addr = true;
1506 }
1507
1508 sta->sdata = vlansdata;
1509
1510 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1511 prev_4addr != new_4addr) {
1512 if (new_4addr)
1513 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1514 else
1515 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1516 }
1517
1518 ieee80211_send_layer2_update(sta);
1519 }
1520
1521 err = sta_apply_parameters(local, sta, params);
1522 if (err)
1523 goto out_err;
1524
1525 /* When peer becomes authorized, init rate control as well */
1526 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1527 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1528 rate_control_rate_init(sta);
1529
1530 mutex_unlock(&local->sta_mtx);
1531
1532 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1533 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1534 ieee80211_recalc_ps(local, -1);
1535 ieee80211_recalc_ps_vif(sdata);
1536 }
1537
1538 return 0;
1539 out_err:
1540 mutex_unlock(&local->sta_mtx);
1541 return err;
1542 }
1543
1544 #ifdef CONFIG_MAC80211_MESH
1545 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1546 u8 *dst, u8 *next_hop)
1547 {
1548 struct ieee80211_sub_if_data *sdata;
1549 struct mesh_path *mpath;
1550 struct sta_info *sta;
1551
1552 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1553
1554 rcu_read_lock();
1555 sta = sta_info_get(sdata, next_hop);
1556 if (!sta) {
1557 rcu_read_unlock();
1558 return -ENOENT;
1559 }
1560
1561 mpath = mesh_path_add(sdata, dst);
1562 if (IS_ERR(mpath)) {
1563 rcu_read_unlock();
1564 return PTR_ERR(mpath);
1565 }
1566
1567 mesh_path_fix_nexthop(mpath, sta);
1568
1569 rcu_read_unlock();
1570 return 0;
1571 }
1572
1573 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1574 u8 *dst)
1575 {
1576 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1577
1578 if (dst)
1579 return mesh_path_del(sdata, dst);
1580
1581 mesh_path_flush_by_iface(sdata);
1582 return 0;
1583 }
1584
1585 static int ieee80211_change_mpath(struct wiphy *wiphy,
1586 struct net_device *dev,
1587 u8 *dst, u8 *next_hop)
1588 {
1589 struct ieee80211_sub_if_data *sdata;
1590 struct mesh_path *mpath;
1591 struct sta_info *sta;
1592
1593 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1594
1595 rcu_read_lock();
1596
1597 sta = sta_info_get(sdata, next_hop);
1598 if (!sta) {
1599 rcu_read_unlock();
1600 return -ENOENT;
1601 }
1602
1603 mpath = mesh_path_lookup(sdata, dst);
1604 if (!mpath) {
1605 rcu_read_unlock();
1606 return -ENOENT;
1607 }
1608
1609 mesh_path_fix_nexthop(mpath, sta);
1610
1611 rcu_read_unlock();
1612 return 0;
1613 }
1614
1615 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1616 struct mpath_info *pinfo)
1617 {
1618 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1619
1620 if (next_hop_sta)
1621 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1622 else
1623 memset(next_hop, 0, ETH_ALEN);
1624
1625 memset(pinfo, 0, sizeof(*pinfo));
1626
1627 pinfo->generation = mesh_paths_generation;
1628
1629 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1630 MPATH_INFO_SN |
1631 MPATH_INFO_METRIC |
1632 MPATH_INFO_EXPTIME |
1633 MPATH_INFO_DISCOVERY_TIMEOUT |
1634 MPATH_INFO_DISCOVERY_RETRIES |
1635 MPATH_INFO_FLAGS;
1636
1637 pinfo->frame_qlen = mpath->frame_queue.qlen;
1638 pinfo->sn = mpath->sn;
1639 pinfo->metric = mpath->metric;
1640 if (time_before(jiffies, mpath->exp_time))
1641 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1642 pinfo->discovery_timeout =
1643 jiffies_to_msecs(mpath->discovery_timeout);
1644 pinfo->discovery_retries = mpath->discovery_retries;
1645 if (mpath->flags & MESH_PATH_ACTIVE)
1646 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1647 if (mpath->flags & MESH_PATH_RESOLVING)
1648 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1649 if (mpath->flags & MESH_PATH_SN_VALID)
1650 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1651 if (mpath->flags & MESH_PATH_FIXED)
1652 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1653 if (mpath->flags & MESH_PATH_RESOLVED)
1654 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1655 }
1656
1657 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1658 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1659
1660 {
1661 struct ieee80211_sub_if_data *sdata;
1662 struct mesh_path *mpath;
1663
1664 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1665
1666 rcu_read_lock();
1667 mpath = mesh_path_lookup(sdata, dst);
1668 if (!mpath) {
1669 rcu_read_unlock();
1670 return -ENOENT;
1671 }
1672 memcpy(dst, mpath->dst, ETH_ALEN);
1673 mpath_set_pinfo(mpath, next_hop, pinfo);
1674 rcu_read_unlock();
1675 return 0;
1676 }
1677
1678 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1679 int idx, u8 *dst, u8 *next_hop,
1680 struct mpath_info *pinfo)
1681 {
1682 struct ieee80211_sub_if_data *sdata;
1683 struct mesh_path *mpath;
1684
1685 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1686
1687 rcu_read_lock();
1688 mpath = mesh_path_lookup_by_idx(sdata, idx);
1689 if (!mpath) {
1690 rcu_read_unlock();
1691 return -ENOENT;
1692 }
1693 memcpy(dst, mpath->dst, ETH_ALEN);
1694 mpath_set_pinfo(mpath, next_hop, pinfo);
1695 rcu_read_unlock();
1696 return 0;
1697 }
1698
1699 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1700 struct net_device *dev,
1701 struct mesh_config *conf)
1702 {
1703 struct ieee80211_sub_if_data *sdata;
1704 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1705
1706 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1707 return 0;
1708 }
1709
1710 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1711 {
1712 return (mask >> (parm-1)) & 0x1;
1713 }
1714
1715 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1716 const struct mesh_setup *setup)
1717 {
1718 u8 *new_ie;
1719 const u8 *old_ie;
1720 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1721 struct ieee80211_sub_if_data, u.mesh);
1722
1723 /* allocate information elements */
1724 new_ie = NULL;
1725 old_ie = ifmsh->ie;
1726
1727 if (setup->ie_len) {
1728 new_ie = kmemdup(setup->ie, setup->ie_len,
1729 GFP_KERNEL);
1730 if (!new_ie)
1731 return -ENOMEM;
1732 }
1733 ifmsh->ie_len = setup->ie_len;
1734 ifmsh->ie = new_ie;
1735 kfree(old_ie);
1736
1737 /* now copy the rest of the setup parameters */
1738 ifmsh->mesh_id_len = setup->mesh_id_len;
1739 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1740 ifmsh->mesh_sp_id = setup->sync_method;
1741 ifmsh->mesh_pp_id = setup->path_sel_proto;
1742 ifmsh->mesh_pm_id = setup->path_metric;
1743 ifmsh->user_mpm = setup->user_mpm;
1744 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1745 if (setup->is_authenticated)
1746 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1747 if (setup->is_secure)
1748 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1749
1750 /* mcast rate setting in Mesh Node */
1751 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1752 sizeof(setup->mcast_rate));
1753
1754 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1755 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1756
1757 return 0;
1758 }
1759
1760 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1761 struct net_device *dev, u32 mask,
1762 const struct mesh_config *nconf)
1763 {
1764 struct mesh_config *conf;
1765 struct ieee80211_sub_if_data *sdata;
1766 struct ieee80211_if_mesh *ifmsh;
1767
1768 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769 ifmsh = &sdata->u.mesh;
1770
1771 /* Set the config options which we are interested in setting */
1772 conf = &(sdata->u.mesh.mshcfg);
1773 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1774 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1775 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1776 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1777 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1778 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1779 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1780 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1781 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1782 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1783 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1784 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1785 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1786 conf->element_ttl = nconf->element_ttl;
1787 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1788 if (ifmsh->user_mpm)
1789 return -EBUSY;
1790 conf->auto_open_plinks = nconf->auto_open_plinks;
1791 }
1792 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1793 conf->dot11MeshNbrOffsetMaxNeighbor =
1794 nconf->dot11MeshNbrOffsetMaxNeighbor;
1795 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1796 conf->dot11MeshHWMPmaxPREQretries =
1797 nconf->dot11MeshHWMPmaxPREQretries;
1798 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1799 conf->path_refresh_time = nconf->path_refresh_time;
1800 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1801 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1802 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1803 conf->dot11MeshHWMPactivePathTimeout =
1804 nconf->dot11MeshHWMPactivePathTimeout;
1805 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1806 conf->dot11MeshHWMPpreqMinInterval =
1807 nconf->dot11MeshHWMPpreqMinInterval;
1808 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1809 conf->dot11MeshHWMPperrMinInterval =
1810 nconf->dot11MeshHWMPperrMinInterval;
1811 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1812 mask))
1813 conf->dot11MeshHWMPnetDiameterTraversalTime =
1814 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1815 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1816 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1817 ieee80211_mesh_root_setup(ifmsh);
1818 }
1819 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1820 /* our current gate announcement implementation rides on root
1821 * announcements, so require this ifmsh to also be a root node
1822 * */
1823 if (nconf->dot11MeshGateAnnouncementProtocol &&
1824 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1825 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1826 ieee80211_mesh_root_setup(ifmsh);
1827 }
1828 conf->dot11MeshGateAnnouncementProtocol =
1829 nconf->dot11MeshGateAnnouncementProtocol;
1830 }
1831 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1832 conf->dot11MeshHWMPRannInterval =
1833 nconf->dot11MeshHWMPRannInterval;
1834 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1835 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1836 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1837 /* our RSSI threshold implementation is supported only for
1838 * devices that report signal in dBm.
1839 */
1840 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1841 return -ENOTSUPP;
1842 conf->rssi_threshold = nconf->rssi_threshold;
1843 }
1844 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1845 conf->ht_opmode = nconf->ht_opmode;
1846 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1847 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1848 }
1849 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1850 conf->dot11MeshHWMPactivePathToRootTimeout =
1851 nconf->dot11MeshHWMPactivePathToRootTimeout;
1852 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1853 conf->dot11MeshHWMProotInterval =
1854 nconf->dot11MeshHWMProotInterval;
1855 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1856 conf->dot11MeshHWMPconfirmationInterval =
1857 nconf->dot11MeshHWMPconfirmationInterval;
1858 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1859 conf->power_mode = nconf->power_mode;
1860 ieee80211_mps_local_status_update(sdata);
1861 }
1862 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1863 conf->dot11MeshAwakeWindowDuration =
1864 nconf->dot11MeshAwakeWindowDuration;
1865 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1866 return 0;
1867 }
1868
1869 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1870 const struct mesh_config *conf,
1871 const struct mesh_setup *setup)
1872 {
1873 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1874 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1875 int err;
1876
1877 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1878 err = copy_mesh_setup(ifmsh, setup);
1879 if (err)
1880 return err;
1881
1882 /* can mesh use other SMPS modes? */
1883 sdata->smps_mode = IEEE80211_SMPS_OFF;
1884 sdata->needed_rx_chains = sdata->local->rx_chains;
1885
1886 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1887 IEEE80211_CHANCTX_SHARED);
1888 if (err)
1889 return err;
1890
1891 return ieee80211_start_mesh(sdata);
1892 }
1893
1894 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1895 {
1896 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1897
1898 ieee80211_stop_mesh(sdata);
1899 ieee80211_vif_release_channel(sdata);
1900
1901 return 0;
1902 }
1903 #endif
1904
1905 static int ieee80211_change_bss(struct wiphy *wiphy,
1906 struct net_device *dev,
1907 struct bss_parameters *params)
1908 {
1909 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1910 enum ieee80211_band band;
1911 u32 changed = 0;
1912
1913 if (!rtnl_dereference(sdata->u.ap.beacon))
1914 return -ENOENT;
1915
1916 band = ieee80211_get_sdata_band(sdata);
1917
1918 if (params->use_cts_prot >= 0) {
1919 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1920 changed |= BSS_CHANGED_ERP_CTS_PROT;
1921 }
1922 if (params->use_short_preamble >= 0) {
1923 sdata->vif.bss_conf.use_short_preamble =
1924 params->use_short_preamble;
1925 changed |= BSS_CHANGED_ERP_PREAMBLE;
1926 }
1927
1928 if (!sdata->vif.bss_conf.use_short_slot &&
1929 band == IEEE80211_BAND_5GHZ) {
1930 sdata->vif.bss_conf.use_short_slot = true;
1931 changed |= BSS_CHANGED_ERP_SLOT;
1932 }
1933
1934 if (params->use_short_slot_time >= 0) {
1935 sdata->vif.bss_conf.use_short_slot =
1936 params->use_short_slot_time;
1937 changed |= BSS_CHANGED_ERP_SLOT;
1938 }
1939
1940 if (params->basic_rates) {
1941 int i, j;
1942 u32 rates = 0;
1943 struct ieee80211_supported_band *sband = wiphy->bands[band];
1944
1945 for (i = 0; i < params->basic_rates_len; i++) {
1946 int rate = (params->basic_rates[i] & 0x7f) * 5;
1947 for (j = 0; j < sband->n_bitrates; j++) {
1948 if (sband->bitrates[j].bitrate == rate)
1949 rates |= BIT(j);
1950 }
1951 }
1952 sdata->vif.bss_conf.basic_rates = rates;
1953 changed |= BSS_CHANGED_BASIC_RATES;
1954 }
1955
1956 if (params->ap_isolate >= 0) {
1957 if (params->ap_isolate)
1958 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1959 else
1960 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1961 }
1962
1963 if (params->ht_opmode >= 0) {
1964 sdata->vif.bss_conf.ht_operation_mode =
1965 (u16) params->ht_opmode;
1966 changed |= BSS_CHANGED_HT;
1967 }
1968
1969 if (params->p2p_ctwindow >= 0) {
1970 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1971 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1972 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1973 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1974 changed |= BSS_CHANGED_P2P_PS;
1975 }
1976
1977 if (params->p2p_opp_ps > 0) {
1978 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1979 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1980 changed |= BSS_CHANGED_P2P_PS;
1981 } else if (params->p2p_opp_ps == 0) {
1982 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1983 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1984 changed |= BSS_CHANGED_P2P_PS;
1985 }
1986
1987 ieee80211_bss_info_change_notify(sdata, changed);
1988
1989 return 0;
1990 }
1991
1992 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1993 struct net_device *dev,
1994 struct ieee80211_txq_params *params)
1995 {
1996 struct ieee80211_local *local = wiphy_priv(wiphy);
1997 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1998 struct ieee80211_tx_queue_params p;
1999
2000 if (!local->ops->conf_tx)
2001 return -EOPNOTSUPP;
2002
2003 if (local->hw.queues < IEEE80211_NUM_ACS)
2004 return -EOPNOTSUPP;
2005
2006 memset(&p, 0, sizeof(p));
2007 p.aifs = params->aifs;
2008 p.cw_max = params->cwmax;
2009 p.cw_min = params->cwmin;
2010 p.txop = params->txop;
2011
2012 /*
2013 * Setting tx queue params disables u-apsd because it's only
2014 * called in master mode.
2015 */
2016 p.uapsd = false;
2017
2018 sdata->tx_conf[params->ac] = p;
2019 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2020 wiphy_debug(local->hw.wiphy,
2021 "failed to set TX queue parameters for AC %d\n",
2022 params->ac);
2023 return -EINVAL;
2024 }
2025
2026 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2027
2028 return 0;
2029 }
2030
2031 #ifdef CONFIG_PM
2032 static int ieee80211_suspend(struct wiphy *wiphy,
2033 struct cfg80211_wowlan *wowlan)
2034 {
2035 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2036 }
2037
2038 static int ieee80211_resume(struct wiphy *wiphy)
2039 {
2040 return __ieee80211_resume(wiphy_priv(wiphy));
2041 }
2042 #else
2043 #define ieee80211_suspend NULL
2044 #define ieee80211_resume NULL
2045 #endif
2046
2047 static int ieee80211_scan(struct wiphy *wiphy,
2048 struct cfg80211_scan_request *req)
2049 {
2050 struct ieee80211_sub_if_data *sdata;
2051
2052 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2053
2054 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2055 case NL80211_IFTYPE_STATION:
2056 case NL80211_IFTYPE_ADHOC:
2057 case NL80211_IFTYPE_MESH_POINT:
2058 case NL80211_IFTYPE_P2P_CLIENT:
2059 case NL80211_IFTYPE_P2P_DEVICE:
2060 break;
2061 case NL80211_IFTYPE_P2P_GO:
2062 if (sdata->local->ops->hw_scan)
2063 break;
2064 /*
2065 * FIXME: implement NoA while scanning in software,
2066 * for now fall through to allow scanning only when
2067 * beaconing hasn't been configured yet
2068 */
2069 case NL80211_IFTYPE_AP:
2070 /*
2071 * If the scan has been forced (and the driver supports
2072 * forcing), don't care about being beaconing already.
2073 * This will create problems to the attached stations (e.g. all
2074 * the frames sent while scanning on other channel will be
2075 * lost)
2076 */
2077 if (sdata->u.ap.beacon &&
2078 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2079 !(req->flags & NL80211_SCAN_FLAG_AP)))
2080 return -EOPNOTSUPP;
2081 break;
2082 default:
2083 return -EOPNOTSUPP;
2084 }
2085
2086 return ieee80211_request_scan(sdata, req);
2087 }
2088
2089 static int
2090 ieee80211_sched_scan_start(struct wiphy *wiphy,
2091 struct net_device *dev,
2092 struct cfg80211_sched_scan_request *req)
2093 {
2094 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2095
2096 if (!sdata->local->ops->sched_scan_start)
2097 return -EOPNOTSUPP;
2098
2099 return ieee80211_request_sched_scan_start(sdata, req);
2100 }
2101
2102 static int
2103 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2104 {
2105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2106
2107 if (!sdata->local->ops->sched_scan_stop)
2108 return -EOPNOTSUPP;
2109
2110 return ieee80211_request_sched_scan_stop(sdata);
2111 }
2112
2113 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2114 struct cfg80211_auth_request *req)
2115 {
2116 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2117 }
2118
2119 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2120 struct cfg80211_assoc_request *req)
2121 {
2122 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2123 }
2124
2125 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2126 struct cfg80211_deauth_request *req)
2127 {
2128 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2129 }
2130
2131 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2132 struct cfg80211_disassoc_request *req)
2133 {
2134 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2135 }
2136
2137 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2138 struct cfg80211_ibss_params *params)
2139 {
2140 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2141 }
2142
2143 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2144 {
2145 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2146 }
2147
2148 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2149 int rate[IEEE80211_NUM_BANDS])
2150 {
2151 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2152
2153 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2154 sizeof(int) * IEEE80211_NUM_BANDS);
2155
2156 return 0;
2157 }
2158
2159 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2160 {
2161 struct ieee80211_local *local = wiphy_priv(wiphy);
2162 int err;
2163
2164 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2165 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2166
2167 if (err)
2168 return err;
2169 }
2170
2171 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2172 err = drv_set_coverage_class(local, wiphy->coverage_class);
2173
2174 if (err)
2175 return err;
2176 }
2177
2178 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2179 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2180
2181 if (err)
2182 return err;
2183 }
2184
2185 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2186 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2187 return -EINVAL;
2188 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2189 }
2190 if (changed & WIPHY_PARAM_RETRY_LONG) {
2191 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2192 return -EINVAL;
2193 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2194 }
2195 if (changed &
2196 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2197 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2198
2199 return 0;
2200 }
2201
2202 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2203 struct wireless_dev *wdev,
2204 enum nl80211_tx_power_setting type, int mbm)
2205 {
2206 struct ieee80211_local *local = wiphy_priv(wiphy);
2207 struct ieee80211_sub_if_data *sdata;
2208
2209 if (wdev) {
2210 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2211
2212 switch (type) {
2213 case NL80211_TX_POWER_AUTOMATIC:
2214 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2215 break;
2216 case NL80211_TX_POWER_LIMITED:
2217 case NL80211_TX_POWER_FIXED:
2218 if (mbm < 0 || (mbm % 100))
2219 return -EOPNOTSUPP;
2220 sdata->user_power_level = MBM_TO_DBM(mbm);
2221 break;
2222 }
2223
2224 ieee80211_recalc_txpower(sdata);
2225
2226 return 0;
2227 }
2228
2229 switch (type) {
2230 case NL80211_TX_POWER_AUTOMATIC:
2231 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2232 break;
2233 case NL80211_TX_POWER_LIMITED:
2234 case NL80211_TX_POWER_FIXED:
2235 if (mbm < 0 || (mbm % 100))
2236 return -EOPNOTSUPP;
2237 local->user_power_level = MBM_TO_DBM(mbm);
2238 break;
2239 }
2240
2241 mutex_lock(&local->iflist_mtx);
2242 list_for_each_entry(sdata, &local->interfaces, list)
2243 sdata->user_power_level = local->user_power_level;
2244 list_for_each_entry(sdata, &local->interfaces, list)
2245 ieee80211_recalc_txpower(sdata);
2246 mutex_unlock(&local->iflist_mtx);
2247
2248 return 0;
2249 }
2250
2251 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2252 struct wireless_dev *wdev,
2253 int *dbm)
2254 {
2255 struct ieee80211_local *local = wiphy_priv(wiphy);
2256 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2257
2258 if (!local->use_chanctx)
2259 *dbm = local->hw.conf.power_level;
2260 else
2261 *dbm = sdata->vif.bss_conf.txpower;
2262
2263 return 0;
2264 }
2265
2266 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2267 const u8 *addr)
2268 {
2269 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2270
2271 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2272
2273 return 0;
2274 }
2275
2276 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2277 {
2278 struct ieee80211_local *local = wiphy_priv(wiphy);
2279
2280 drv_rfkill_poll(local);
2281 }
2282
2283 #ifdef CONFIG_NL80211_TESTMODE
2284 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2285 {
2286 struct ieee80211_local *local = wiphy_priv(wiphy);
2287
2288 if (!local->ops->testmode_cmd)
2289 return -EOPNOTSUPP;
2290
2291 return local->ops->testmode_cmd(&local->hw, data, len);
2292 }
2293
2294 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2295 struct sk_buff *skb,
2296 struct netlink_callback *cb,
2297 void *data, int len)
2298 {
2299 struct ieee80211_local *local = wiphy_priv(wiphy);
2300
2301 if (!local->ops->testmode_dump)
2302 return -EOPNOTSUPP;
2303
2304 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2305 }
2306 #endif
2307
2308 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2309 enum ieee80211_smps_mode smps_mode)
2310 {
2311 const u8 *ap;
2312 enum ieee80211_smps_mode old_req;
2313 int err;
2314
2315 lockdep_assert_held(&sdata->u.mgd.mtx);
2316
2317 old_req = sdata->u.mgd.req_smps;
2318 sdata->u.mgd.req_smps = smps_mode;
2319
2320 if (old_req == smps_mode &&
2321 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2322 return 0;
2323
2324 /*
2325 * If not associated, or current association is not an HT
2326 * association, there's no need to do anything, just store
2327 * the new value until we associate.
2328 */
2329 if (!sdata->u.mgd.associated ||
2330 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2331 return 0;
2332
2333 ap = sdata->u.mgd.associated->bssid;
2334
2335 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2336 if (sdata->u.mgd.powersave)
2337 smps_mode = IEEE80211_SMPS_DYNAMIC;
2338 else
2339 smps_mode = IEEE80211_SMPS_OFF;
2340 }
2341
2342 /* send SM PS frame to AP */
2343 err = ieee80211_send_smps_action(sdata, smps_mode,
2344 ap, ap);
2345 if (err)
2346 sdata->u.mgd.req_smps = old_req;
2347
2348 return err;
2349 }
2350
2351 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2352 bool enabled, int timeout)
2353 {
2354 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2355 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2356
2357 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2358 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
2359 return -EOPNOTSUPP;
2360
2361 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2362 return -EOPNOTSUPP;
2363
2364 if (enabled == sdata->u.mgd.powersave &&
2365 timeout == local->dynamic_ps_forced_timeout)
2366 return 0;
2367
2368 sdata->u.mgd.powersave = enabled;
2369 local->dynamic_ps_forced_timeout = timeout;
2370
2371 /* no change, but if automatic follow powersave */
2372 mutex_lock(&sdata->u.mgd.mtx);
2373 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2374 mutex_unlock(&sdata->u.mgd.mtx);
2375
2376 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2377 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2378
2379 ieee80211_recalc_ps(local, -1);
2380 ieee80211_recalc_ps_vif(sdata);
2381
2382 return 0;
2383 }
2384
2385 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2386 struct net_device *dev,
2387 s32 rssi_thold, u32 rssi_hyst)
2388 {
2389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2390 struct ieee80211_vif *vif = &sdata->vif;
2391 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2392
2393 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2394 rssi_hyst == bss_conf->cqm_rssi_hyst)
2395 return 0;
2396
2397 bss_conf->cqm_rssi_thold = rssi_thold;
2398 bss_conf->cqm_rssi_hyst = rssi_hyst;
2399
2400 /* tell the driver upon association, unless already associated */
2401 if (sdata->u.mgd.associated &&
2402 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2403 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2404
2405 return 0;
2406 }
2407
2408 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2409 struct net_device *dev,
2410 const u8 *addr,
2411 const struct cfg80211_bitrate_mask *mask)
2412 {
2413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2414 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2415 int i, ret;
2416
2417 if (!ieee80211_sdata_running(sdata))
2418 return -ENETDOWN;
2419
2420 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2421 ret = drv_set_bitrate_mask(local, sdata, mask);
2422 if (ret)
2423 return ret;
2424 }
2425
2426 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2427 struct ieee80211_supported_band *sband = wiphy->bands[i];
2428 int j;
2429
2430 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2431 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2432 sizeof(mask->control[i].mcs));
2433
2434 sdata->rc_has_mcs_mask[i] = false;
2435 if (!sband)
2436 continue;
2437
2438 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2439 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2440 sdata->rc_has_mcs_mask[i] = true;
2441 break;
2442 }
2443 }
2444
2445 return 0;
2446 }
2447
2448 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2449 struct ieee80211_sub_if_data *sdata,
2450 struct ieee80211_channel *channel,
2451 unsigned int duration, u64 *cookie,
2452 struct sk_buff *txskb,
2453 enum ieee80211_roc_type type)
2454 {
2455 struct ieee80211_roc_work *roc, *tmp;
2456 bool queued = false;
2457 int ret;
2458
2459 lockdep_assert_held(&local->mtx);
2460
2461 if (local->use_chanctx && !local->ops->remain_on_channel)
2462 return -EOPNOTSUPP;
2463
2464 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2465 if (!roc)
2466 return -ENOMEM;
2467
2468 roc->chan = channel;
2469 roc->duration = duration;
2470 roc->req_duration = duration;
2471 roc->frame = txskb;
2472 roc->type = type;
2473 roc->mgmt_tx_cookie = (unsigned long)txskb;
2474 roc->sdata = sdata;
2475 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2476 INIT_LIST_HEAD(&roc->dependents);
2477
2478 /* if there's one pending or we're scanning, queue this one */
2479 if (!list_empty(&local->roc_list) ||
2480 local->scanning || local->radar_detect_enabled)
2481 goto out_check_combine;
2482
2483 /* if not HW assist, just queue & schedule work */
2484 if (!local->ops->remain_on_channel) {
2485 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2486 goto out_queue;
2487 }
2488
2489 /* otherwise actually kick it off here (for error handling) */
2490
2491 /*
2492 * If the duration is zero, then the driver
2493 * wouldn't actually do anything. Set it to
2494 * 10 for now.
2495 *
2496 * TODO: cancel the off-channel operation
2497 * when we get the SKB's TX status and
2498 * the wait time was zero before.
2499 */
2500 if (!duration)
2501 duration = 10;
2502
2503 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2504 if (ret) {
2505 kfree(roc);
2506 return ret;
2507 }
2508
2509 roc->started = true;
2510 goto out_queue;
2511
2512 out_check_combine:
2513 list_for_each_entry(tmp, &local->roc_list, list) {
2514 if (tmp->chan != channel || tmp->sdata != sdata)
2515 continue;
2516
2517 /*
2518 * Extend this ROC if possible:
2519 *
2520 * If it hasn't started yet, just increase the duration
2521 * and add the new one to the list of dependents.
2522 * If the type of the new ROC has higher priority, modify the
2523 * type of the previous one to match that of the new one.
2524 */
2525 if (!tmp->started) {
2526 list_add_tail(&roc->list, &tmp->dependents);
2527 tmp->duration = max(tmp->duration, roc->duration);
2528 tmp->type = max(tmp->type, roc->type);
2529 queued = true;
2530 break;
2531 }
2532
2533 /* If it has already started, it's more difficult ... */
2534 if (local->ops->remain_on_channel) {
2535 unsigned long j = jiffies;
2536
2537 /*
2538 * In the offloaded ROC case, if it hasn't begun, add
2539 * this new one to the dependent list to be handled
2540 * when the master one begins. If it has begun,
2541 * check that there's still a minimum time left and
2542 * if so, start this one, transmitting the frame, but
2543 * add it to the list directly after this one with
2544 * a reduced time so we'll ask the driver to execute
2545 * it right after finishing the previous one, in the
2546 * hope that it'll also be executed right afterwards,
2547 * effectively extending the old one.
2548 * If there's no minimum time left, just add it to the
2549 * normal list.
2550 * TODO: the ROC type is ignored here, assuming that it
2551 * is better to immediately use the current ROC.
2552 */
2553 if (!tmp->hw_begun) {
2554 list_add_tail(&roc->list, &tmp->dependents);
2555 queued = true;
2556 break;
2557 }
2558
2559 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2560 tmp->hw_start_time +
2561 msecs_to_jiffies(tmp->duration))) {
2562 int new_dur;
2563
2564 ieee80211_handle_roc_started(roc);
2565
2566 new_dur = roc->duration -
2567 jiffies_to_msecs(tmp->hw_start_time +
2568 msecs_to_jiffies(
2569 tmp->duration) -
2570 j);
2571
2572 if (new_dur > 0) {
2573 /* add right after tmp */
2574 list_add(&roc->list, &tmp->list);
2575 } else {
2576 list_add_tail(&roc->list,
2577 &tmp->dependents);
2578 }
2579 queued = true;
2580 }
2581 } else if (del_timer_sync(&tmp->work.timer)) {
2582 unsigned long new_end;
2583
2584 /*
2585 * In the software ROC case, cancel the timer, if
2586 * that fails then the finish work is already
2587 * queued/pending and thus we queue the new ROC
2588 * normally, if that succeeds then we can extend
2589 * the timer duration and TX the frame (if any.)
2590 */
2591
2592 list_add_tail(&roc->list, &tmp->dependents);
2593 queued = true;
2594
2595 new_end = jiffies + msecs_to_jiffies(roc->duration);
2596
2597 /* ok, it was started & we canceled timer */
2598 if (time_after(new_end, tmp->work.timer.expires))
2599 mod_timer(&tmp->work.timer, new_end);
2600 else
2601 add_timer(&tmp->work.timer);
2602
2603 ieee80211_handle_roc_started(roc);
2604 }
2605 break;
2606 }
2607
2608 out_queue:
2609 if (!queued)
2610 list_add_tail(&roc->list, &local->roc_list);
2611
2612 /*
2613 * cookie is either the roc cookie (for normal roc)
2614 * or the SKB (for mgmt TX)
2615 */
2616 if (!txskb) {
2617 /* local->mtx protects this */
2618 local->roc_cookie_counter++;
2619 roc->cookie = local->roc_cookie_counter;
2620 /* wow, you wrapped 64 bits ... more likely a bug */
2621 if (WARN_ON(roc->cookie == 0)) {
2622 roc->cookie = 1;
2623 local->roc_cookie_counter++;
2624 }
2625 *cookie = roc->cookie;
2626 } else {
2627 *cookie = (unsigned long)txskb;
2628 }
2629
2630 return 0;
2631 }
2632
2633 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2634 struct wireless_dev *wdev,
2635 struct ieee80211_channel *chan,
2636 unsigned int duration,
2637 u64 *cookie)
2638 {
2639 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2640 struct ieee80211_local *local = sdata->local;
2641 int ret;
2642
2643 mutex_lock(&local->mtx);
2644 ret = ieee80211_start_roc_work(local, sdata, chan,
2645 duration, cookie, NULL,
2646 IEEE80211_ROC_TYPE_NORMAL);
2647 mutex_unlock(&local->mtx);
2648
2649 return ret;
2650 }
2651
2652 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2653 u64 cookie, bool mgmt_tx)
2654 {
2655 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2656 int ret;
2657
2658 mutex_lock(&local->mtx);
2659 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2660 struct ieee80211_roc_work *dep, *tmp2;
2661
2662 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2663 if (!mgmt_tx && dep->cookie != cookie)
2664 continue;
2665 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2666 continue;
2667 /* found dependent item -- just remove it */
2668 list_del(&dep->list);
2669 mutex_unlock(&local->mtx);
2670
2671 ieee80211_roc_notify_destroy(dep, true);
2672 return 0;
2673 }
2674
2675 if (!mgmt_tx && roc->cookie != cookie)
2676 continue;
2677 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2678 continue;
2679
2680 found = roc;
2681 break;
2682 }
2683
2684 if (!found) {
2685 mutex_unlock(&local->mtx);
2686 return -ENOENT;
2687 }
2688
2689 /*
2690 * We found the item to cancel, so do that. Note that it
2691 * may have dependents, which we also cancel (and send
2692 * the expired signal for.) Not doing so would be quite
2693 * tricky here, but we may need to fix it later.
2694 */
2695
2696 if (local->ops->remain_on_channel) {
2697 if (found->started) {
2698 ret = drv_cancel_remain_on_channel(local);
2699 if (WARN_ON_ONCE(ret)) {
2700 mutex_unlock(&local->mtx);
2701 return ret;
2702 }
2703 }
2704
2705 list_del(&found->list);
2706
2707 if (found->started)
2708 ieee80211_start_next_roc(local);
2709 mutex_unlock(&local->mtx);
2710
2711 ieee80211_roc_notify_destroy(found, true);
2712 } else {
2713 /* work may be pending so use it all the time */
2714 found->abort = true;
2715 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2716
2717 mutex_unlock(&local->mtx);
2718
2719 /* work will clean up etc */
2720 flush_delayed_work(&found->work);
2721 WARN_ON(!found->to_be_freed);
2722 kfree(found);
2723 }
2724
2725 return 0;
2726 }
2727
2728 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2729 struct wireless_dev *wdev,
2730 u64 cookie)
2731 {
2732 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2733 struct ieee80211_local *local = sdata->local;
2734
2735 return ieee80211_cancel_roc(local, cookie, false);
2736 }
2737
2738 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2739 struct net_device *dev,
2740 struct cfg80211_chan_def *chandef)
2741 {
2742 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2743 struct ieee80211_local *local = sdata->local;
2744 unsigned long timeout;
2745 int err;
2746
2747 if (!list_empty(&local->roc_list) || local->scanning)
2748 return -EBUSY;
2749
2750 /* whatever, but channel contexts should not complain about that one */
2751 sdata->smps_mode = IEEE80211_SMPS_OFF;
2752 sdata->needed_rx_chains = local->rx_chains;
2753 sdata->radar_required = true;
2754
2755 mutex_lock(&local->iflist_mtx);
2756 err = ieee80211_vif_use_channel(sdata, chandef,
2757 IEEE80211_CHANCTX_SHARED);
2758 mutex_unlock(&local->iflist_mtx);
2759 if (err)
2760 return err;
2761
2762 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2763 ieee80211_queue_delayed_work(&sdata->local->hw,
2764 &sdata->dfs_cac_timer_work, timeout);
2765
2766 return 0;
2767 }
2768
2769 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2770 struct ieee80211_channel *chan, bool offchan,
2771 unsigned int wait, const u8 *buf, size_t len,
2772 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2773 {
2774 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2775 struct ieee80211_local *local = sdata->local;
2776 struct sk_buff *skb;
2777 struct sta_info *sta;
2778 const struct ieee80211_mgmt *mgmt = (void *)buf;
2779 bool need_offchan = false;
2780 u32 flags;
2781 int ret;
2782
2783 if (dont_wait_for_ack)
2784 flags = IEEE80211_TX_CTL_NO_ACK;
2785 else
2786 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2787 IEEE80211_TX_CTL_REQ_TX_STATUS;
2788
2789 if (no_cck)
2790 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2791
2792 switch (sdata->vif.type) {
2793 case NL80211_IFTYPE_ADHOC:
2794 if (!sdata->vif.bss_conf.ibss_joined)
2795 need_offchan = true;
2796 /* fall through */
2797 #ifdef CONFIG_MAC80211_MESH
2798 case NL80211_IFTYPE_MESH_POINT:
2799 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2800 !sdata->u.mesh.mesh_id_len)
2801 need_offchan = true;
2802 /* fall through */
2803 #endif
2804 case NL80211_IFTYPE_AP:
2805 case NL80211_IFTYPE_AP_VLAN:
2806 case NL80211_IFTYPE_P2P_GO:
2807 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2808 !ieee80211_vif_is_mesh(&sdata->vif) &&
2809 !rcu_access_pointer(sdata->bss->beacon))
2810 need_offchan = true;
2811 if (!ieee80211_is_action(mgmt->frame_control) ||
2812 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2813 break;
2814 rcu_read_lock();
2815 sta = sta_info_get(sdata, mgmt->da);
2816 rcu_read_unlock();
2817 if (!sta)
2818 return -ENOLINK;
2819 break;
2820 case NL80211_IFTYPE_STATION:
2821 case NL80211_IFTYPE_P2P_CLIENT:
2822 if (!sdata->u.mgd.associated)
2823 need_offchan = true;
2824 break;
2825 case NL80211_IFTYPE_P2P_DEVICE:
2826 need_offchan = true;
2827 break;
2828 default:
2829 return -EOPNOTSUPP;
2830 }
2831
2832 mutex_lock(&local->mtx);
2833
2834 /* Check if the operating channel is the requested channel */
2835 if (!need_offchan) {
2836 struct ieee80211_chanctx_conf *chanctx_conf;
2837
2838 rcu_read_lock();
2839 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2840
2841 if (chanctx_conf)
2842 need_offchan = chan != chanctx_conf->def.chan;
2843 else
2844 need_offchan = true;
2845 rcu_read_unlock();
2846 }
2847
2848 if (need_offchan && !offchan) {
2849 ret = -EBUSY;
2850 goto out_unlock;
2851 }
2852
2853 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2854 if (!skb) {
2855 ret = -ENOMEM;
2856 goto out_unlock;
2857 }
2858 skb_reserve(skb, local->hw.extra_tx_headroom);
2859
2860 memcpy(skb_put(skb, len), buf, len);
2861
2862 IEEE80211_SKB_CB(skb)->flags = flags;
2863
2864 skb->dev = sdata->dev;
2865
2866 if (!need_offchan) {
2867 *cookie = (unsigned long) skb;
2868 ieee80211_tx_skb(sdata, skb);
2869 ret = 0;
2870 goto out_unlock;
2871 }
2872
2873 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
2874 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2875 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2876 IEEE80211_SKB_CB(skb)->hw_queue =
2877 local->hw.offchannel_tx_hw_queue;
2878
2879 /* This will handle all kinds of coalescing and immediate TX */
2880 ret = ieee80211_start_roc_work(local, sdata, chan,
2881 wait, cookie, skb,
2882 IEEE80211_ROC_TYPE_MGMT_TX);
2883 if (ret)
2884 kfree_skb(skb);
2885 out_unlock:
2886 mutex_unlock(&local->mtx);
2887 return ret;
2888 }
2889
2890 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2891 struct wireless_dev *wdev,
2892 u64 cookie)
2893 {
2894 struct ieee80211_local *local = wiphy_priv(wiphy);
2895
2896 return ieee80211_cancel_roc(local, cookie, true);
2897 }
2898
2899 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2900 struct wireless_dev *wdev,
2901 u16 frame_type, bool reg)
2902 {
2903 struct ieee80211_local *local = wiphy_priv(wiphy);
2904 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2905
2906 switch (frame_type) {
2907 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2908 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2909 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2910
2911 if (reg)
2912 ifibss->auth_frame_registrations++;
2913 else
2914 ifibss->auth_frame_registrations--;
2915 }
2916 break;
2917 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2918 if (reg)
2919 local->probe_req_reg++;
2920 else
2921 local->probe_req_reg--;
2922
2923 if (!local->open_count)
2924 break;
2925
2926 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2927 break;
2928 default:
2929 break;
2930 }
2931 }
2932
2933 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2934 {
2935 struct ieee80211_local *local = wiphy_priv(wiphy);
2936
2937 if (local->started)
2938 return -EOPNOTSUPP;
2939
2940 return drv_set_antenna(local, tx_ant, rx_ant);
2941 }
2942
2943 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2944 {
2945 struct ieee80211_local *local = wiphy_priv(wiphy);
2946
2947 return drv_get_antenna(local, tx_ant, rx_ant);
2948 }
2949
2950 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2951 {
2952 struct ieee80211_local *local = wiphy_priv(wiphy);
2953
2954 return drv_set_ringparam(local, tx, rx);
2955 }
2956
2957 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2958 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2959 {
2960 struct ieee80211_local *local = wiphy_priv(wiphy);
2961
2962 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2963 }
2964
2965 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2966 struct net_device *dev,
2967 struct cfg80211_gtk_rekey_data *data)
2968 {
2969 struct ieee80211_local *local = wiphy_priv(wiphy);
2970 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2971
2972 if (!local->ops->set_rekey_data)
2973 return -EOPNOTSUPP;
2974
2975 drv_set_rekey_data(local, sdata, data);
2976
2977 return 0;
2978 }
2979
2980 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2981 {
2982 u8 *pos = (void *)skb_put(skb, 7);
2983
2984 *pos++ = WLAN_EID_EXT_CAPABILITY;
2985 *pos++ = 5; /* len */
2986 *pos++ = 0x0;
2987 *pos++ = 0x0;
2988 *pos++ = 0x0;
2989 *pos++ = 0x0;
2990 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2991 }
2992
2993 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2994 {
2995 struct ieee80211_local *local = sdata->local;
2996 u16 capab;
2997
2998 capab = 0;
2999 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3000 return capab;
3001
3002 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3003 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3004 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3005 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3006
3007 return capab;
3008 }
3009
3010 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3011 u8 *peer, u8 *bssid)
3012 {
3013 struct ieee80211_tdls_lnkie *lnkid;
3014
3015 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3016
3017 lnkid->ie_type = WLAN_EID_LINK_ID;
3018 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3019
3020 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3021 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3022 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3023 }
3024
3025 static int
3026 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3027 u8 *peer, u8 action_code, u8 dialog_token,
3028 u16 status_code, struct sk_buff *skb)
3029 {
3030 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3031 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3032 struct ieee80211_tdls_data *tf;
3033
3034 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3035
3036 memcpy(tf->da, peer, ETH_ALEN);
3037 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3038 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3039 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3040
3041 switch (action_code) {
3042 case WLAN_TDLS_SETUP_REQUEST:
3043 tf->category = WLAN_CATEGORY_TDLS;
3044 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3045
3046 skb_put(skb, sizeof(tf->u.setup_req));
3047 tf->u.setup_req.dialog_token = dialog_token;
3048 tf->u.setup_req.capability =
3049 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3050
3051 ieee80211_add_srates_ie(sdata, skb, false, band);
3052 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3053 ieee80211_tdls_add_ext_capab(skb);
3054 break;
3055 case WLAN_TDLS_SETUP_RESPONSE:
3056 tf->category = WLAN_CATEGORY_TDLS;
3057 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3058
3059 skb_put(skb, sizeof(tf->u.setup_resp));
3060 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3061 tf->u.setup_resp.dialog_token = dialog_token;
3062 tf->u.setup_resp.capability =
3063 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3064
3065 ieee80211_add_srates_ie(sdata, skb, false, band);
3066 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3067 ieee80211_tdls_add_ext_capab(skb);
3068 break;
3069 case WLAN_TDLS_SETUP_CONFIRM:
3070 tf->category = WLAN_CATEGORY_TDLS;
3071 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3072
3073 skb_put(skb, sizeof(tf->u.setup_cfm));
3074 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3075 tf->u.setup_cfm.dialog_token = dialog_token;
3076 break;
3077 case WLAN_TDLS_TEARDOWN:
3078 tf->category = WLAN_CATEGORY_TDLS;
3079 tf->action_code = WLAN_TDLS_TEARDOWN;
3080
3081 skb_put(skb, sizeof(tf->u.teardown));
3082 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3083 break;
3084 case WLAN_TDLS_DISCOVERY_REQUEST:
3085 tf->category = WLAN_CATEGORY_TDLS;
3086 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3087
3088 skb_put(skb, sizeof(tf->u.discover_req));
3089 tf->u.discover_req.dialog_token = dialog_token;
3090 break;
3091 default:
3092 return -EINVAL;
3093 }
3094
3095 return 0;
3096 }
3097
3098 static int
3099 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3100 u8 *peer, u8 action_code, u8 dialog_token,
3101 u16 status_code, struct sk_buff *skb)
3102 {
3103 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3104 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3105 struct ieee80211_mgmt *mgmt;
3106
3107 mgmt = (void *)skb_put(skb, 24);
3108 memset(mgmt, 0, 24);
3109 memcpy(mgmt->da, peer, ETH_ALEN);
3110 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3111 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3112
3113 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3114 IEEE80211_STYPE_ACTION);
3115
3116 switch (action_code) {
3117 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3118 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3119 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3120 mgmt->u.action.u.tdls_discover_resp.action_code =
3121 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3122 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3123 dialog_token;
3124 mgmt->u.action.u.tdls_discover_resp.capability =
3125 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3126
3127 ieee80211_add_srates_ie(sdata, skb, false, band);
3128 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3129 ieee80211_tdls_add_ext_capab(skb);
3130 break;
3131 default:
3132 return -EINVAL;
3133 }
3134
3135 return 0;
3136 }
3137
3138 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3139 u8 *peer, u8 action_code, u8 dialog_token,
3140 u16 status_code, const u8 *extra_ies,
3141 size_t extra_ies_len)
3142 {
3143 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3144 struct ieee80211_local *local = sdata->local;
3145 struct sk_buff *skb = NULL;
3146 bool send_direct;
3147 int ret;
3148
3149 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3150 return -ENOTSUPP;
3151
3152 /* make sure we are in managed mode, and associated */
3153 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3154 !sdata->u.mgd.associated)
3155 return -EINVAL;
3156
3157 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3158 action_code, peer);
3159
3160 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3161 max(sizeof(struct ieee80211_mgmt),
3162 sizeof(struct ieee80211_tdls_data)) +
3163 50 + /* supported rates */
3164 7 + /* ext capab */
3165 extra_ies_len +
3166 sizeof(struct ieee80211_tdls_lnkie));
3167 if (!skb)
3168 return -ENOMEM;
3169
3170 skb_reserve(skb, local->hw.extra_tx_headroom);
3171
3172 switch (action_code) {
3173 case WLAN_TDLS_SETUP_REQUEST:
3174 case WLAN_TDLS_SETUP_RESPONSE:
3175 case WLAN_TDLS_SETUP_CONFIRM:
3176 case WLAN_TDLS_TEARDOWN:
3177 case WLAN_TDLS_DISCOVERY_REQUEST:
3178 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3179 action_code, dialog_token,
3180 status_code, skb);
3181 send_direct = false;
3182 break;
3183 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3184 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3185 dialog_token, status_code,
3186 skb);
3187 send_direct = true;
3188 break;
3189 default:
3190 ret = -ENOTSUPP;
3191 break;
3192 }
3193
3194 if (ret < 0)
3195 goto fail;
3196
3197 if (extra_ies_len)
3198 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3199
3200 /* the TDLS link IE is always added last */
3201 switch (action_code) {
3202 case WLAN_TDLS_SETUP_REQUEST:
3203 case WLAN_TDLS_SETUP_CONFIRM:
3204 case WLAN_TDLS_TEARDOWN:
3205 case WLAN_TDLS_DISCOVERY_REQUEST:
3206 /* we are the initiator */
3207 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3208 sdata->u.mgd.bssid);
3209 break;
3210 case WLAN_TDLS_SETUP_RESPONSE:
3211 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3212 /* we are the responder */
3213 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3214 sdata->u.mgd.bssid);
3215 break;
3216 default:
3217 ret = -ENOTSUPP;
3218 goto fail;
3219 }
3220
3221 if (send_direct) {
3222 ieee80211_tx_skb(sdata, skb);
3223 return 0;
3224 }
3225
3226 /*
3227 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3228 * we should default to AC_VI.
3229 */
3230 switch (action_code) {
3231 case WLAN_TDLS_SETUP_REQUEST:
3232 case WLAN_TDLS_SETUP_RESPONSE:
3233 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3234 skb->priority = 2;
3235 break;
3236 default:
3237 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3238 skb->priority = 5;
3239 break;
3240 }
3241
3242 /* disable bottom halves when entering the Tx path */
3243 local_bh_disable();
3244 ret = ieee80211_subif_start_xmit(skb, dev);
3245 local_bh_enable();
3246
3247 return ret;
3248
3249 fail:
3250 dev_kfree_skb(skb);
3251 return ret;
3252 }
3253
3254 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3255 u8 *peer, enum nl80211_tdls_operation oper)
3256 {
3257 struct sta_info *sta;
3258 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3259
3260 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3261 return -ENOTSUPP;
3262
3263 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3264 return -EINVAL;
3265
3266 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3267
3268 switch (oper) {
3269 case NL80211_TDLS_ENABLE_LINK:
3270 rcu_read_lock();
3271 sta = sta_info_get(sdata, peer);
3272 if (!sta) {
3273 rcu_read_unlock();
3274 return -ENOLINK;
3275 }
3276
3277 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3278 rcu_read_unlock();
3279 break;
3280 case NL80211_TDLS_DISABLE_LINK:
3281 return sta_info_destroy_addr(sdata, peer);
3282 case NL80211_TDLS_TEARDOWN:
3283 case NL80211_TDLS_SETUP:
3284 case NL80211_TDLS_DISCOVERY_REQ:
3285 /* We don't support in-driver setup/teardown/discovery */
3286 return -ENOTSUPP;
3287 default:
3288 return -ENOTSUPP;
3289 }
3290
3291 return 0;
3292 }
3293
3294 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3295 const u8 *peer, u64 *cookie)
3296 {
3297 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3298 struct ieee80211_local *local = sdata->local;
3299 struct ieee80211_qos_hdr *nullfunc;
3300 struct sk_buff *skb;
3301 int size = sizeof(*nullfunc);
3302 __le16 fc;
3303 bool qos;
3304 struct ieee80211_tx_info *info;
3305 struct sta_info *sta;
3306 struct ieee80211_chanctx_conf *chanctx_conf;
3307 enum ieee80211_band band;
3308
3309 rcu_read_lock();
3310 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3311 if (WARN_ON(!chanctx_conf)) {
3312 rcu_read_unlock();
3313 return -EINVAL;
3314 }
3315 band = chanctx_conf->def.chan->band;
3316 sta = sta_info_get(sdata, peer);
3317 if (sta) {
3318 qos = test_sta_flag(sta, WLAN_STA_WME);
3319 } else {
3320 rcu_read_unlock();
3321 return -ENOLINK;
3322 }
3323
3324 if (qos) {
3325 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3326 IEEE80211_STYPE_QOS_NULLFUNC |
3327 IEEE80211_FCTL_FROMDS);
3328 } else {
3329 size -= 2;
3330 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3331 IEEE80211_STYPE_NULLFUNC |
3332 IEEE80211_FCTL_FROMDS);
3333 }
3334
3335 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3336 if (!skb) {
3337 rcu_read_unlock();
3338 return -ENOMEM;
3339 }
3340
3341 skb->dev = dev;
3342
3343 skb_reserve(skb, local->hw.extra_tx_headroom);
3344
3345 nullfunc = (void *) skb_put(skb, size);
3346 nullfunc->frame_control = fc;
3347 nullfunc->duration_id = 0;
3348 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3349 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3350 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3351 nullfunc->seq_ctrl = 0;
3352
3353 info = IEEE80211_SKB_CB(skb);
3354
3355 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3356 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3357
3358 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3359 skb->priority = 7;
3360 if (qos)
3361 nullfunc->qos_ctrl = cpu_to_le16(7);
3362
3363 local_bh_disable();
3364 ieee80211_xmit(sdata, skb, band);
3365 local_bh_enable();
3366 rcu_read_unlock();
3367
3368 *cookie = (unsigned long) skb;
3369 return 0;
3370 }
3371
3372 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3373 struct wireless_dev *wdev,
3374 struct cfg80211_chan_def *chandef)
3375 {
3376 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3377 struct ieee80211_local *local = wiphy_priv(wiphy);
3378 struct ieee80211_chanctx_conf *chanctx_conf;
3379 int ret = -ENODATA;
3380
3381 rcu_read_lock();
3382 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3383 if (chanctx_conf) {
3384 *chandef = chanctx_conf->def;
3385 ret = 0;
3386 } else if (local->open_count > 0 &&
3387 local->open_count == local->monitors &&
3388 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3389 if (local->use_chanctx)
3390 *chandef = local->monitor_chandef;
3391 else
3392 *chandef = local->_oper_chandef;
3393 ret = 0;
3394 }
3395 rcu_read_unlock();
3396
3397 return ret;
3398 }
3399
3400 #ifdef CONFIG_PM
3401 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3402 {
3403 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3404 }
3405 #endif
3406
3407 struct cfg80211_ops mac80211_config_ops = {
3408 .add_virtual_intf = ieee80211_add_iface,
3409 .del_virtual_intf = ieee80211_del_iface,
3410 .change_virtual_intf = ieee80211_change_iface,
3411 .start_p2p_device = ieee80211_start_p2p_device,
3412 .stop_p2p_device = ieee80211_stop_p2p_device,
3413 .add_key = ieee80211_add_key,
3414 .del_key = ieee80211_del_key,
3415 .get_key = ieee80211_get_key,
3416 .set_default_key = ieee80211_config_default_key,
3417 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3418 .start_ap = ieee80211_start_ap,
3419 .change_beacon = ieee80211_change_beacon,
3420 .stop_ap = ieee80211_stop_ap,
3421 .add_station = ieee80211_add_station,
3422 .del_station = ieee80211_del_station,
3423 .change_station = ieee80211_change_station,
3424 .get_station = ieee80211_get_station,
3425 .dump_station = ieee80211_dump_station,
3426 .dump_survey = ieee80211_dump_survey,
3427 #ifdef CONFIG_MAC80211_MESH
3428 .add_mpath = ieee80211_add_mpath,
3429 .del_mpath = ieee80211_del_mpath,
3430 .change_mpath = ieee80211_change_mpath,
3431 .get_mpath = ieee80211_get_mpath,
3432 .dump_mpath = ieee80211_dump_mpath,
3433 .update_mesh_config = ieee80211_update_mesh_config,
3434 .get_mesh_config = ieee80211_get_mesh_config,
3435 .join_mesh = ieee80211_join_mesh,
3436 .leave_mesh = ieee80211_leave_mesh,
3437 #endif
3438 .change_bss = ieee80211_change_bss,
3439 .set_txq_params = ieee80211_set_txq_params,
3440 .set_monitor_channel = ieee80211_set_monitor_channel,
3441 .suspend = ieee80211_suspend,
3442 .resume = ieee80211_resume,
3443 .scan = ieee80211_scan,
3444 .sched_scan_start = ieee80211_sched_scan_start,
3445 .sched_scan_stop = ieee80211_sched_scan_stop,
3446 .auth = ieee80211_auth,
3447 .assoc = ieee80211_assoc,
3448 .deauth = ieee80211_deauth,
3449 .disassoc = ieee80211_disassoc,
3450 .join_ibss = ieee80211_join_ibss,
3451 .leave_ibss = ieee80211_leave_ibss,
3452 .set_mcast_rate = ieee80211_set_mcast_rate,
3453 .set_wiphy_params = ieee80211_set_wiphy_params,
3454 .set_tx_power = ieee80211_set_tx_power,
3455 .get_tx_power = ieee80211_get_tx_power,
3456 .set_wds_peer = ieee80211_set_wds_peer,
3457 .rfkill_poll = ieee80211_rfkill_poll,
3458 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3459 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3460 .set_power_mgmt = ieee80211_set_power_mgmt,
3461 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3462 .remain_on_channel = ieee80211_remain_on_channel,
3463 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3464 .mgmt_tx = ieee80211_mgmt_tx,
3465 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3466 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3467 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3468 .set_antenna = ieee80211_set_antenna,
3469 .get_antenna = ieee80211_get_antenna,
3470 .set_ringparam = ieee80211_set_ringparam,
3471 .get_ringparam = ieee80211_get_ringparam,
3472 .set_rekey_data = ieee80211_set_rekey_data,
3473 .tdls_oper = ieee80211_tdls_oper,
3474 .tdls_mgmt = ieee80211_tdls_mgmt,
3475 .probe_client = ieee80211_probe_client,
3476 .set_noack_map = ieee80211_set_noack_map,
3477 #ifdef CONFIG_PM
3478 .set_wakeup = ieee80211_set_wakeup,
3479 #endif
3480 .get_et_sset_count = ieee80211_get_et_sset_count,
3481 .get_et_stats = ieee80211_get_et_stats,
3482 .get_et_strings = ieee80211_get_et_strings,
3483 .get_channel = ieee80211_cfg_get_channel,
3484 .start_radar_detection = ieee80211_start_radar_detection,
3485 };
ubuntu-bionic-kernel mirror